#ifndef NODE_NODEEVENTS_H_62B23520_7C8E_11DE_8A39_0800200C9A66
#define NODE_NODEEVENTS_H_62B23520_7C8E_11DE_8A39_0800200C9A66

#if defined(_MSC_VER) || (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || (__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4
#pragma once
#endif

#include "yaml-cpp/anchor.h"
#include "yaml-cpp/node/ptr.h"
#include <map>
#include <vector>

namespace YAML
{
	class EventHandler;
	class Node;

	class NodeEvents
	{
	public:
		explicit NodeEvents(const Node& node);
		const NodeEvents& operator=(const NodeEvents& rhs) = delete;

		void Emit(EventHandler& handler);

	private:
		class AliasManager {
		public:
			AliasManager() : m_curAnchor(0) {}

			void RegisterReference(const detail::node& node);
			anchor_t LookupAnchor(const detail::node& node) const;

		private:
			anchor_t _CreateNewAnchor() { return ++m_curAnchor; }

		private:
			typedef std::map<const detail::node_ref*, anchor_t> AnchorByIdentity;
			AnchorByIdentity m_anchorByIdentity;

			anchor_t m_curAnchor;
		};

		void Setup(const detail::node& node);
		void Emit(const detail::node& node, EventHandler& handler, AliasManager& am) const;
		bool IsAliased(const detail::node& node) const;

	private:
		detail::shared_memory_holder m_pMemory;
		detail::node& m_root;

		typedef std::map<const detail::node_ref *, int> RefCount;
		RefCount m_refCount;
	};
}

#endif // NODE_NODEEVENTS_H_62B23520_7C8E_11DE_8A39_0800200C9A66
